Headers Question, Please Help
Thread Starter
Instructor
Joined: Mar 2008
Posts: 136
Likes: 0
From: OCEANSIDE CA
Headers Question, Please Help
GREETINGS,
OK, MY CAR SO FAR HAS MAGNAFLOW, X-PIPE, TB SPACER, VAVARAM INTAKE AND AFTER DYNO TUNING IT, MY CAR IS MAKING 371RWHP. FIRST , IS IT GOOD?
SECOND, I WAS TOLD THAT IF I PUT SOME LONG TUBE HEADERS AND DYNO TUNE IT AGAIN, IT WILL GAIN ABOUT 30RWHP? IS IT TRUE OR
MY QUESTIONS TO ALL THE EXPERTS HERE IS, IF IT IS TRUE, WHICH LONG TUBE HEADERS SHOULD I GO FOR? KOOKS, LG, SLP ETC?
OK, MY CAR SO FAR HAS MAGNAFLOW, X-PIPE, TB SPACER, VAVARAM INTAKE AND AFTER DYNO TUNING IT, MY CAR IS MAKING 371RWHP. FIRST , IS IT GOOD?
SECOND, I WAS TOLD THAT IF I PUT SOME LONG TUBE HEADERS AND DYNO TUNE IT AGAIN, IT WILL GAIN ABOUT 30RWHP? IS IT TRUE OR
MY QUESTIONS TO ALL THE EXPERTS HERE IS, IF IT IS TRUE, WHICH LONG TUBE HEADERS SHOULD I GO FOR? KOOKS, LG, SLP ETC?
Le Mans Master
Joined: Dec 2002
Posts: 7,588
Likes: 6
From: Montreal Qc
Welcome....First thing you should is turn off your CAPS lock! 
As for headers, yes the right set-up should add ~30 RWHP to your car. As for what brand, well that's a subject that has been beaten to death on here. I have Kooks and I'm satisfied with them, LG certainly has a large following and LG likes to tell everyone that their headers are the best. I would suggest you either do a search and read through some of the many posts or speak to some of the vendors and get their opinion based on your goals and what will work best with what you've already got installed. Best of luck with this project!
As for headers, yes the right set-up should add ~30 RWHP to your car. As for what brand, well that's a subject that has been beaten to death on here. I have Kooks and I'm satisfied with them, LG certainly has a large following and LG likes to tell everyone that their headers are the best. I would suggest you either do a search and read through some of the many posts or speak to some of the vendors and get their opinion based on your goals and what will work best with what you've already got installed. Best of luck with this project!
Race Director
Joined: Mar 2005
Posts: 10,399
Likes: 25
From: Austin Texas
You won't gain 30RWHP over your existing 371RWHP. Most LS2's will not reach 400RWHP with bolt-on mods on an SAE corrected Dynojet.
My '05 6spd manual;
Mufflers only = 346 RWH.
add Dynatech 1 7/8" headers/cats/X pipe = 365RWHP
add Lingenfelter CAI = 375RWHP
add CoW Tune & 160° t'stat= 377RWHP
add ported stock intake manifold =384RWHP
(Some of the RWHP #'s were at smoothing 3, some at smoothing 5)
The tune didn't add much measurable HP but made a BIG difference in the way the car feels.
My '05 6spd manual;
Mufflers only = 346 RWH.
add Dynatech 1 7/8" headers/cats/X pipe = 365RWHP
add Lingenfelter CAI = 375RWHP
add CoW Tune & 160° t'stat= 377RWHP
add ported stock intake manifold =384RWHP
(Some of the RWHP #'s were at smoothing 3, some at smoothing 5)
The tune didn't add much measurable HP but made a BIG difference in the way the car feels.
Melting Slicks
Joined: May 2006
Posts: 3,448
Likes: 130
From: Fernandina Beach
GREETINGS,
OK, MY CAR SO FAR HAS MAGNAFLOW, X-PIPE, TB SPACER, VAVARAM INTAKE AND AFTER DYNO TUNING IT, MY CAR IS MAKING 371RWHP. FIRST , IS IT GOOD?
SECOND, I WAS TOLD THAT IF I PUT SOME LONG TUBE HEADERS AND DYNO TUNE IT AGAIN, IT WILL GAIN ABOUT 30RWHP? IS IT TRUE OR
MY QUESTIONS TO ALL THE EXPERTS HERE IS, IF IT IS TRUE, WHICH LONG TUBE HEADERS SHOULD I GO FOR? KOOKS, LG, SLP ETC?
OK, MY CAR SO FAR HAS MAGNAFLOW, X-PIPE, TB SPACER, VAVARAM INTAKE AND AFTER DYNO TUNING IT, MY CAR IS MAKING 371RWHP. FIRST , IS IT GOOD?
SECOND, I WAS TOLD THAT IF I PUT SOME LONG TUBE HEADERS AND DYNO TUNE IT AGAIN, IT WILL GAIN ABOUT 30RWHP? IS IT TRUE OR
MY QUESTIONS TO ALL THE EXPERTS HERE IS, IF IT IS TRUE, WHICH LONG TUBE HEADERS SHOULD I GO FOR? KOOKS, LG, SLP ETC?
I have an auto 06 and with Kooks Headers and x-pipe, tb spacer, Honker CAI, Magnaflow axelback and tune made
375 rwhp
376 rwtq
baseline
328 rwhp
341 rwtq
Ted
Melting Slicks
Joined: Sep 2007
Posts: 2,597
Likes: 3
From: READING PA
St. Jude Donor '08-'09-'10
GREETINGS,
OK, MY CAR SO FAR HAS MAGNAFLOW, X-PIPE, TB SPACER, VAVARAM INTAKE AND AFTER DYNO TUNING IT, MY CAR IS MAKING 371RWHP. FIRST , IS IT GOOD?
SECOND, I WAS TOLD THAT IF I PUT SOME LONG TUBE HEADERS AND DYNO TUNE IT AGAIN, IT WILL GAIN ABOUT 30RWHP? IS IT TRUE OR
MY QUESTIONS TO ALL THE EXPERTS HERE IS, IF IT IS TRUE, WHICH LONG TUBE HEADERS SHOULD I GO FOR? KOOKS, LG, SLP ETC?
OK, MY CAR SO FAR HAS MAGNAFLOW, X-PIPE, TB SPACER, VAVARAM INTAKE AND AFTER DYNO TUNING IT, MY CAR IS MAKING 371RWHP. FIRST , IS IT GOOD?
SECOND, I WAS TOLD THAT IF I PUT SOME LONG TUBE HEADERS AND DYNO TUNE IT AGAIN, IT WILL GAIN ABOUT 30RWHP? IS IT TRUE OR
MY QUESTIONS TO ALL THE EXPERTS HERE IS, IF IT IS TRUE, WHICH LONG TUBE HEADERS SHOULD I GO FOR? KOOKS, LG, SLP ETC?
compliment of boltons as described. Porting the TB & intake and a good tune most of the good ones are getting 390's.
Former Vendor
Joined: Sep 2007
Posts: 5,511
Likes: 22
From: Southern MD
You definatly want headers...they are the building block mod with the LSX and make everything better.
We have a pretty good sale going here if interested-
http://forums.corvetteforum.com/show....php?t=1950990
We have a pretty good sale going here if interested-
http://forums.corvetteforum.com/show....php?t=1950990
Thread Starter
Instructor
Joined: Mar 2008
Posts: 136
Likes: 0
From: OCEANSIDE CA
THANKS SO MUCH GUYS. oh, i have turned off my caps. i have been doing some research, and now i am thinking about going with kooks because its cheaper. i have a stick shift. i dodn't know it matters if you have a auto or manual shifter. if you have more info, please let me know.
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Melting Slicks
Joined: Feb 2004
Posts: 3,307
Likes: 110
From: Tucson AZ
Stay with 1 3/4" primary diameter header tubes unless you are adding a blower. Shop around for the best price on LG, Kooks, or American Racing headers. All three are excellent and can be argued as the best.
You need to make a decision on whether you are going to purchase an X pipe with hi-flow catalytic converters, or just straight pipe. If you have a smog inspection in your state, then you must purchase the X pipe with cats and this will incease the price.
You need to make a decision on whether you are going to purchase an X pipe with hi-flow catalytic converters, or just straight pipe. If you have a smog inspection in your state, then you must purchase the X pipe with cats and this will incease the price.
Burning Brakes
Joined: Oct 2006
Posts: 995
Likes: 2
From: Virginia Beach VA
Stay with 1 3/4" primary diameter header tubes unless you are adding a blower. Shop around for the best price on LG, Kooks, or American Racing headers. All three are excellent and can be argued as the best.
You need to make a decision on whether you are going to purchase an X pipe with hi-flow catalytic converters, or just straight pipe. If you have a smog inspection in your state, then you must purchase the X pipe with cats and this will incease the price.
You need to make a decision on whether you are going to purchase an X pipe with hi-flow catalytic converters, or just straight pipe. If you have a smog inspection in your state, then you must purchase the X pipe with cats and this will incease the price.
I agree, & don't listen to that room to grow stuff, unless you stroke or go F/I, 1-3/4 are fine, but go w/ Kooks 3" x-pipe & 3" all the way back to your mufflers. I later added ported FAST intake, cam, underdrive pulley, plus and the 1-3/4 flowed well enough to make 452rwhp/418rwtq.
Burning Brakes
Joined: Oct 2006
Posts: 995
Likes: 2
From: Virginia Beach VA
It's not worth it, you're likely to get a CEL w/ the headers anyway, as the car leans out too much, so getting a tune will take care of it, but the real problem when add headers w/o cats the car gets way too loud. It will sound like 60s muscle car w/ headers & glasspacks & it will be fun for about 5 minutes. The performance gain is next to nothing, if it's money, this is not the place to skimp.
Melting Slicks
Joined: Sep 2007
Posts: 2,597
Likes: 3
From: READING PA
St. Jude Donor '08-'09-'10
I like that cam
I agree, & don't listen to that room to grow stuff, unless you stroke or go F/I, 1-3/4 are fine, but go w/ Kooks 3" x-pipe & 3" all the way back to your mufflers. I later added ported FAST intake, cam, underdrive pulley, plus and the 1-3/4 flowed well enough to make 452rwhp/418rwtq.
By the way did the FAST make your car sound louder. Mine did. I wish
you would share those cam specs with me. Im impressed with your numbers I know you ported the fast yourself. That was a good amount of savings. I know he wants to get to 400 RWHP/TQ. I dont know anyone outside of ACHILDS who achieved it without a FAST/ PORTED.
Burning Brakes
Joined: Oct 2006
Posts: 995
Likes: 2
From: Virginia Beach VA
Mike I also agree that 1 3/4 " Headers would be a great choice for him.
By the way did the FAST make your car sound louder. Mine did. I wish
you would share those cam specs with me. Im impressed with your numbers I know you ported the fast yourself. That was a good amount of savings. I know he wants to get to 400 RWHP/TQ. I dont know anyone outside of ACHILDS who achieved it without a FAST/ PORTED.
By the way did the FAST make your car sound louder. Mine did. I wish
you would share those cam specs with me. Im impressed with your numbers I know you ported the fast yourself. That was a good amount of savings. I know he wants to get to 400 RWHP/TQ. I dont know anyone outside of ACHILDS who achieved it without a FAST/ PORTED.
Melting Slicks
Joined: Sep 2007
Posts: 2,597
Likes: 3
From: READING PA
St. Jude Donor '08-'09-'10
Pro
Joined: May 2007
Posts: 585
Likes: 0
From: Ocean County NJ
I have an 2007 6 spd manual car, Z51 package.
1 3/4" Kooks headers, catted mid pipe, Callaway CAI, 160 degree thermo and a tune by Cartek. Made 385 rwhp and 374 tq. Car had less than 1000 miles on odometer.
I was told 1 3/4 unless going forced induction.
Very satisfied with the results of the work performed on my car. Good luck with yours.
Thread Starter
Instructor
Joined: Mar 2008
Posts: 136
Likes: 0
From: OCEANSIDE CA
just bought kooks 1 3/4" from www.marylandspeed.com and they gave me a huge military discount!!!! loving it and would recommend them to anyone. i will have my dyno done as soon as i get them.